背景:未经治疗的牙周炎患者的高咬合力可能反映了咬合创伤相关的牙周状况。使用T扫描进行咬合分析可能会提供牙周炎患者咬合负荷力的分布。该研究旨在评估牙周炎患者咬合创伤的影响以及使用T扫描进行咬合校准。
方法:共招募30名牙周炎患者进行研究。患者分为两组:第一组:缩放和根部平整,然后进行T扫描记录,不进行咬合校准;第二组:缩放和根部平整,然后使用T扫描进行咬合校准。临床参数,端骨图(OPG)和T扫描评估在基线进行评估,3个月和6个月的间隔。
结果:使用T扫描进行咬合校准后,在不同时间间隔发现临床参数的显着改善。每隔3个月,平均口袋深度在右侧(上,下)和左侧下象限的测试组中分别在P=0.01、0.002和0.005处显示出统计学上的显着差异。平均临床依恋水平(CAL)在右上实验组之间显示出统计学上的显着差异,右下和左下象限分别在P=0.02,0.001和0.009,在3个月。6个月时平均牙龈指数(GI)的比较显示,在不同研究象限的6个月时,测试组和对照组之间存在统计学上的显着差异(右上P=1,右下方0.009,左上<0.001,左下<0.001)。6个月随访时的平均口袋深度在所有研究象限中的测试组中显示出统计学上的显着差异(右上,P=<0.001,右下<0.001,左上0.003,左下0.005)。平均CAL在6个月间隔的所有研究象限中在测试组中显示出统计学上的显着差异(右上P=0.02,右下<0.001,左上0.01,左下0.04)。在6个月的随访中,两个测试组中的骨缺损高度仅在右上象限中显示出统计学上的显着差异(P=0.02)。比较颌骨两侧的平均力百分比在6个月时在测试组中显示出统计学上的显着差异(左侧P=0.001,右侧P=0.001)。
结论:使用T扫描的咬合矫正显示,在从基线到6个月的不同时间间隔,探测袋深度(PPD)与CAL之间呈正相关,在咬合调整后比较这些参数。
BACKGROUND: High occlusal forces in patients with untreated periodontitis may reflect occlusal trauma-associated periodontal conditions. Occlusal analysis using T-scan might provide the distribution of occlusal loading forces in periodontitis patients. The study aimed to evaluate the effect of occlusal trauma in periodontitis patients and occlusal calibration using a T-scan.
METHODS: A total of 30 periodontitis patients were recruited for the study. Patients were categorized into two groups: Group I: scaling and root planing followed by T-scan recording and no occlusal calibration; Group II: scaling and root planing followed by occlusal calibration using T-scan. Clinical parameters, orthopantomogram (OPG) and T-scan evaluation were evaluated at baseline, 3-month and 6-month intervals.
RESULTS: Significant improvements in clinical parameters were noted at different time intervals after occlusal calibration using T-scan. At 3-month intervals, mean pocket depth showed statistically significant difference among the test group in the right (upper and lower) and left lower quadrant at P = 0.01, 0.002 and 0.005, respectively. Mean clinical attachment level (CAL) showed statistically significant difference among the test group in the right upper, right lower and left lower quadrants at P = 0.02, 0.001 and 0.009, respectively, at 3 months. The comparison of the mean gingival index (GI) at 6 months showed statistically significant difference among test and control groups at 6 months in different study quadrants (P = 1 in right upper, 0.009 in right lower, <0.001 in left upper and <0.001 in left lower). Mean pocket depth at the 6-month follow-up showed statistically significant difference among the test group in all the study quadrants (P = <0.001 in right upper, <0.001 in right lower, 0.003 in left upper and 0.005 in left lower). Mean CAL showed statistically significant difference among the test group in all the study quadrants at 6-month intervals (P = 0.02 in right upper, <0.001 in right lower, 0.01 in left upper and 0.04 in left lower). The bone defect height showed a statistically significant difference only in the right upper quadrant among both the test groups at the 6-month follow-up (P = 0.02). Comparing the mean percentage of force on both sides of the jaw showed a statistically significant difference among the test group at 6 months (P = 0.001 on the left side and 0.001 on the right side).
CONCLUSIONS: The occlusal correction using T-scan showed a positive association between probing pocket depth (PPD) and CAL at different time intervals from baseline to 6 months when these parameters were compared after occlusal adjustments.